Car Loan Calculator
Calculate your car loan EMI including down payments, trade-ins, and taxes.
What Affects Your Car Loan Payment?
Our Car Loan Calculator helps you estimate your monthly auto loan payments quickly and accurately. When financing a vehicle, several factors affect your final out-of-pocket costs and monthly payments. Beyond the sticker price and interest rate, this calculator allows you to factor in down payments, cash rebates or incentives, trade-in values, and any remaining balances (amount owed on trade-in). It also includes local sales taxes and dealership fees, giving you a precise estimate of your true financing costs.
How Down Payments Reduce Your Loan Cost
The down payment is the upfront cash you pay toward the vehicle purchase. A larger down payment directly reduces the total amount you need to borrow, which in turn lowers your monthly payment and decreases the total amount of interest you'll pay over the life of the loan. It also helps protect you against depreciation, keeping you from owing more than the car is worth in the early years of the loan.
Trade-Ins and Negative Equity
If you sell your old vehicle to the dealership, they will apply its value against the new car purchase. If you own the trade-in outright, the full value acts just like a cash down payment. If you still owe money on the car you're trading in, that balance must be paid off first. If you owe more than the car is currently worth, you have "negative equity." The dealership might roll this negative equity into your new loan, effectively increasing the total amount financed and your new monthly payment.
Sales Tax and Dealer Fees on Car Loans
Most states require sales tax on the purchase price (or the difference between the purchase price and trade-in value). Dealerships also routinely charge documentation, destination, and registration fees. These costs can significantly increase the total amount you need to finance. If you need to calculate the precise tax amount before entering it into the financing equation, you can use our GST Calculator.
How Loan Term Affects Total Cost
A longer loan term lowers your monthly payment by spreading the same total cost over more months, but it increases the total interest you pay over the life of the loan — and because cars depreciate quickly (often losing significant value in the first few years), a longer term also raises the risk of being "underwater," where you owe more on the loan than the car is currently worth. This matters most if you plan to sell or trade in the vehicle before the loan is paid off, since negative equity would need to be covered out of pocket or rolled into your next loan. Shorter terms (36–60 months) generally keep your loan balance closer to the car's depreciating value throughout the loan, reducing this risk even though the monthly payment is higher.
New vs Used Car Loan Rates
New car loans typically carry lower interest rates than used car loans, often by a meaningful margin — lenders view new vehicles as lower risk since they have a clear, verifiable value and haven't yet depreciated. Used cars, particularly older or higher-mileage ones, carry more uncertainty around remaining useful life and resale value, which lenders price in as a higher rate. Some manufacturers also offer promotional low or 0% APR financing on new vehicles that isn't available on used car purchases, which can widen the gap further. When comparing a new vs used purchase, it's worth running both scenarios through this calculator using realistic rate estimates for each, since the total interest difference can meaningfully affect which option is actually cheaper once financing costs are included.
Car Loan Amortization Schedule
When you make a car payment, a portion of the money goes toward the principal (the actual loan amount) and another portion covers the interest. An amortization schedule maps out exactly how much of each payment is applied to principal versus interest over the life of the loan. Early in the loan, a larger chunk of your payment goes to interest. Toward the end of the loan, the majority of the payment goes toward paying down the principal.
Example Scenarios
| Car Price | Down Payment | Trade-In | Interest Rate | Loan Tenure | Expected Monthly Payment |
|---|---|---|---|---|---|
| $25,000 | $5,000 | $0 | 5.5% | 60 Months | ~$382.02 |
| $35,000 | $2,000 | $8,000 | 4.9% | 72 Months | ~$399.78 |
| $15,000 | $0 | $0 | 6.5% | 48 Months | ~$355.73 |
| $50,000 | $10,000 | $12,000 | 7.0% | 60 Months | ~$554.43 |
(Note: These estimates exclude taxes, fees, and dealer incentives. Use the advanced options in the calculator for exact figures.)
Tips Before Financing a Car
- Get Pre-Approved: Before visiting the dealership, secure a pre-approved loan from your bank or credit union to have a baseline rate for negotiation.
- Focus on the Total Price, Not Just the Payment: Dealerships often try to negotiate based on a monthly payment target. Focus on the total vehicle price and the total cost of financing instead, so you don't end up paying more overall just to hit a specific monthly figure.
- Keep the Term as Short as You Can Afford: A shorter term saves you money on interest and protects you from negative equity.
- Factor in the Extras: Make sure you budget for the full cost of ownership, including insurance, maintenance, fuel, and taxes.
Frequently Asked Questions (FAQs)
Should I make a large down payment on a car?
Generally, yes. A larger down payment reduces the total amount you need to borrow, which lowers your monthly payments and decreases the total amount of interest you will pay over the life of the loan. It also helps prevent you from being "underwater" (owing more than the car is worth) due to vehicle depreciation.
What is a good loan tenure (term) for a car?
Financial experts often recommend a loan term of 36 to 60 months. While longer terms (like 72 or 84 months) result in lower monthly payments, you end up paying significantly more in interest over time. Additionally, because cars depreciate quickly, long loan terms increase the risk of negative equity.
How do trade-ins work with a car loan?
If you trade in a vehicle, the dealership subtracts its value from the price of the new car. If you own the trade-in outright, the full value acts like a down payment. If you still have a loan on the trade-in, the dealer will use the trade-in value to pay off that loan, and any positive equity goes toward the new car. If you have negative equity (you owe more than the car is worth), the difference may be added to your new loan.
Does my interest rate affect the total cost of the car?
Yes, absolutely. The interest rate determines the cost of borrowing the money. Even a 1% difference in the interest rate can change the total interest paid by hundreds or thousands of dollars, depending on the loan amount and term.
Are used car loan interest rates higher than new car loan rates?
Generally yes — lenders view used vehicles as higher risk due to uncertain remaining useful life and faster relative depreciation on older cars, and new car purchases are sometimes eligible for manufacturer-subsidized low or 0% APR promotions that don't apply to used vehicles.
Should I finance through the dealership or my bank/credit union?
Both are worth comparing — dealership financing can occasionally offer promotional manufacturer rates that beat outside lenders, while banks and credit unions sometimes offer better standard rates, especially for buyers with strong credit. Getting pre-approved by your bank or credit union before visiting the dealership gives you a benchmark rate to negotiate against or walk away from.